Isaac deyell



(No Model.)

I. DEYELL.

SPARK EXTINGUISHERL v Patented Jan. 13, 1885.

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ISAAC DEYELL, OF ST. THOMAS, ONTARIO, CANADA.

SPARK-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 310,565, dated January 13, 1885.

Application filed January 17, 1884.

To aZZ whom it may concern:

Be itknown that I, ISAAODEYELL, a citizen of Canada, residing at St. Thomas, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Spark-Extinguishers; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or ligures of reference marked thereon, which form a part of this specification.

My invention relates more particularly to 'certain improvements in the spark extinguishers for which Letters Patent No. 254,122 were granted to me the 28th day of February, 1882 also, to certain improvements in the smoke-stack to be employed in connection with my improved spark-extinguisher.

To these ends my invention consists of certain arrangements and combinations, which will be particularly hereinafter described and claimed.

In the drawings, Figure 1 is an elevation of my improved smoke-stack and spark-extinguisher with portions broken away, and Fig.

2 is a central vertical section of Fig. 1.

Referring to the drawings, a is the lower cylindrical portion of the smoke-stack. To its upper edge is riveted the outwardly-flaring extension a. The upper portion, a of the stack is,like the lower portion, a, cylindrical in form, and has secured to its lower end the outwardly-flaring extension a, similar in size and shape to the part a. These parts, when put together, form a stack having an enlarged portion, 1), at or near its center, in which the spark-extinguishing apparatus is located. It will be observed that the lower end, a, of the portion a of the stack extends downwardly within the chamber 1), so as to form the annular space 6. The flaring portions a and a are removably secured together by the circular and angular rim 0, secured at its ends 0 c by thescrew-bolt e. (Z is ahollow steam-receptacle provided with the annular steps or shoulders d, which are arranged in a downwardly and inwardly converging direction, as clearly shown. This is the same construction as shown in my patent hereinbefore mentioned.

(No model Over the steam-receptacle d is suitably cured the cap e, having the central opening, e. An annular space, 0 is left between this cap and the receptacle (Z for the exit of steam from the receptacle (1, which is mounted upon the pipe 1. This pipe passes up through the center of receptacle (2 to a point near the cap 0. f is a steam-pipe leading from the boiler directly or from the steam-chest or exhaust-nozzle and connecting with the pipe f. The pipe f is provided with the eockf to regulate the quantity of steam.

Over the cap 0, a short distance therefrom, is secured the disk ,0f a size somewhat larger than the receptacle (2 and its cap e. This disk is provided with the een tral circular opening, 9, considerably larger than the opening 0 in the cap 0. Over this opening and surround ing it,is the hollow frustuminal passage h, secured to the upper surface of the disk 9. The disk g is secured to extensions of the cap 6 by the bolts 9 and short sections 9 of pipe, and both disk y and cap 0 are supported within the chamber b by the brackets is, bolted to the portion a of the stack.

Upon the inner and upper face of the portion a of the stack is secured the deflector I, having the downwardly converging sides, whose lower edge is turned upwardly to form the annular curved bottom Z, into which pro jects the lower extension, (0, of the stack o The deflector Z is secured to the sides of the portion a of the stack by the strips Z (three or more) in such manner as to leave a space between the deflector and portion a of the stack.

Between the extension (0* of the stack and the upper part of the deflector Z is placed the circular perforated steam-pipe m, connected by pipe m with the pipe f, leading to the boiler or steam-chest. The upper portion, c of the stack is hinged near itslower end at a, so that the upper portion can be lowered out of the way when necessary.

The operation of the apparatus just described is substantially as follows: When the engine with'my improved apparatus attached thereto is set in motion, the exhaust-steam, preferably, is allowed to pass into the receptacle (I through pipes f such steam escapes through the annular passage c in the form of ahorizontal wall, through and f. A portion of I00 which the sparks are obliged to pass in their upward course in the stack. The rest of the steam from the pipe f passes out through the opening a in the cap 0, and escapes upwardly through the passage h and into the portion a of the upper stack,and assists in maintaining the proper draft. The disk 9 serves to throw the ascending sparks and smoke into the annular space I), from whence they pass downwardly along the inner'wall of the deflector Z, and pass the perforated pipe m, where they are again subjected to the quenching action of the escaping steam at that point. The curved lower portion, Z, of the, deflector serves to direct the passing sparks upwardly and through the section a of the stack, out of which they pass into the open air. It will readily be seen that it is practically impossible for any sparks to pass out ofthestack unextinguished,while at the same time the draft is not weakened to the extent of materially affecting the proper amount of combustion in the fire-box. The exhauststeam taken directly from the exhaust-nozzle or steam-chest is preferred; but

it is apparent that live steam from the boiler could with proper regulations be employed instead.

1. Inaspark-extingnislierl'orsmokestacks, the steam-receptacle (I, and cap e, provided with the opening 6, thereap 6 so arranged thereon as to leave the annular space e, the

rated steam-pipe m, and the extension (0* of 5 the portion a of the smoke-stack substantially as and for the purpose stated.

4. The spark-extinguisher consisting of the steam-receptacle d, its pipe f, and its cap 0,

having the opening 6, the disk g, its central opening, 9, and its passage h, the deflector Z, with its annular curved bottom Z, the perforated pipe m, with the snpply-pipe m, and the extension a, the whole combined and arranged within the chamber 1) of the smoke-stack, substantially as shown and described.

In testimony whereof I have signed my name to this specification in the presence of twosubscribing witnesses.

ISAA G DEYELL.

\Vi tnesses:

OTTO HODDICK, W. T. MILLER. 

